Resurfacing-tool.



J. H. RICHARDSON.

RESURFACING TOOL.

APPLICATION FILED AUG. 4. 1913.

l 1'4U 3Q8O Patented May 25, 1915.

MT'NESSEK zz 717% M jwf ({MM I I647 j KTEED STATES PAENT FFEO.

JOHN H. RICHARDSON, OF MELROSE, MASSACHUSETTS, ASSIGNOR TO UNITED SHOEMACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

iaoses.

T all whom'it may concern Be it known that 1, JOHN H. RICHARDSON, acitizen of the United States, residing at Melrose, in the county ofMiddlesex and State of Massachusetts, have invented certain Improvementsin Resurfacing-Tools, of which the following description, in connectionwith the accompanying drawings, is a specification, like referencecharacters on the drawings indicating like parts in the several figures.

This invention relates to resurfacing tools, and particularly to thatclass of tools the function of which is to finish different parts of thesurface in succession by removing at each operation a portion ofmaterial of dennite width and of a depth sufficient to provide thecharacter of surface desired. Such tools are usually in the form ofplanes, and the preferred embodiment of the invention herein describedand shown comprises a plane having the above mentioned generalcharacteristics, although it should be understood that the invention isnot limited to a tool constructed to form plane surfaces.

An immediate object of the invention is to provide a tool which shall beespecially useful for ire-finishing the surfaces of cutting blocks suchas are used in die presses, and more particularly the blocks used in atype of machine known as the clicking machine which is employedextensively for dieing out uppers and linings in the manufacture ofboots and shoes. Portions of these blocks are subject to considerablewear in the cutting operation, and since it is necessary for the bestresults that the block shall oppose a substantially plane, smoothsurface to the cutting edge of the die, frequent resurfacing isnecessary. These blocks are commonly made of hard and resistantmaterial, and when constructed of wood are so arranged that the workingsurface is across the grain of the wood. It follows that in resurfacingsuch a block by the use of a hand tool it is possible to operateeffectively at one time upon only a small portion of the surface. Forthis reason tools of the general class to which this invention relatesare especially adapted for this purpose.

In view of the variation in character of the material of which differentblocks are composed, as well as the differences in ability amongdifferent operatives, it is obvious that a resurfacing tool constructedto oper- Specification of Letters Patent.

of the front portion of the tool RESURFACING-TOOL.

Patented May 25, 1915.

Application filed August 4, 1913. Serial No. 782,855.

ate invariably upon the same extent of surface will not be adapted forthe best results under all conditions of use.

An object of this invention, therefore, among others, is-to provide atool of the character referred to which shall be better adapted thanprior constructions to meet varying requirements.

To this end a feature of the invention consists in the provision ofmeans whereby the tool may be rendered variably effective upon portionsof the material varying in extent to suit the convenience of theoperator, without detracting from the efficiency of the tool as a meansfor forming under all conditions a substantially smooth surface ofregular contour. The preferred construction comprises a plane in whichthe cutter projects laterally beyond a side portion thereof arranged toact as a guide with reference to the edge of the unfinished portion ofthe surface of the block or similar object to be finished, and whichincludes provision for adjusting suitably thelateral projection of thecutter. r

A further feature resides in the provision of'means for insuring aproper degree of bevel at the cuttingedges of the blade, and alsopreferably a proper angular relation of the cutting edges to thedirection of the length of the blade, and includes a member which isshaped to engage the cutter in fixed angular relation-thereto andconstitutes conveniently a portion of a clamping device for securing thecutter in position, this member being formed to serve as a gage forindicating the proper degree of bevel at the cutting edges, as well asthe proper inclination of these edges with respect to the length of theblade, when the blade is ground.

Other features of the invention, including certain details ofconstruction and combinations of parts,will not be described withreference to the accompanying drawings and pointed out in the appendedclaims.

In the drawings, Figure 1 is a perspective view of a preferred form oftool embodying the present invention, Fig. 2 is a similar view as seenfrom the opposite side with reference to Fig. 1, Fig. 3 is a perspectiveview of the middle portion of the tool, looking upwardly from a positionat one side thereof, and with the guide at the side of the tool removed,Fig. 4: is a transverse section showing the cutter and a portion of theadjusting means, Fig. 5 shows the cutter and parts of the holder indisassembled relation, and Fig. 6 is a perspective view of an endportion of the blade and the clamping member in their normal operativerelation, illustrating features of construction of the clamping memberwhereby the latter may be used as a gage when the blade is ground.

The tool illustrated is designed for finishing plane surfaces, andincludes a stock having a body portion or member 2 formed with a planelower face and elongated in the direction. of operative movement of thetool and handles 4 and 6 whereby the tool 7 may be operated. Formedpreferablyintegral with the portion 2 is an upwardly pro jecting sideportion or flange 8 of the stock to which is secured by means ofclamping screws 10 a guide member 12 also formed with a plane lower facewhich is normally parallel to and spaced somewhat above the lower faceof the portion'2 for a purpose which will be subsequently explained. Thevertical side formed with slots, one of which is shown at 14 in Fig.2,through which the screws 10 pass, so that the guide 12 may be adjustedvertically with respect to the member 2 to vary the distance of itslower face above the lower face of said member.

Mounted upon the member v2 is a holder 16 which is suitably shaped tosupport a cutter 18 and carries a clamping screw 20 for securing thecutter adjustably thereon. The

cutter consists of two blade portions preferably formed integral, andshaped at their ends to provide cutting edges 22 and 24 in r 7 planessubstantially at right'angles to each other. The cutting edges arebacked off at an angle to the direction of the length of the cutter sothat when the cutter'is in position on the holder the edge 22 will besubstantially vertical and the edge 24 approximately at right angles tothe direction of the length of the tool. One end of the holder 16 ispivotally connected with the member 2, as shown at 26, and theintermediate portion 28 of the holder has a bearing upon the uppersurface of said member. This arrangement provides for lateral adjustmentof the cutter with respect to the tool stock without varying the extentof projection of the tool with respect to the plane of the lower face ofthe member 2. Such adjustment is effected. and the cutter secured inadjusted position by means of screws 30 and 32, of which the former isthreaded through the upright flange 8 and bears upon one side of theholder. It will be understood that the upright side portion of the guide12 is suitably broken away to provide for the passage of the screw 30without interfering with the adjustment of the guide.

The screw 32 is threaded through a bridge portion of the member 12 is,

piece 34 formed integral with the members 2 and 8, and engages a bearingblock 36 which is shaped to fit upon the upper side of the cutter. Theend of the screw enters a slot 38 formed transversely ofnthe block so asto prevent longitudinal movementof the block with respect to the cutter.The screw 32 thus assists in retaining the cutter in position upon theholder, and also serves as a means to swing the holder about its aXis ina direction opposite to that of the movement imparted thereto by thescrew 30. The members 2 and 8 are broken away, as shown at 40, and theguide member 12 is outwardly curved asshown at 4:2, to provide for theprojection of the cutter and the lateral adjustment of the cutter andholder. The holder has a downwardly projecting foot 44 which ispositioned within the recess provided in the member 2, with its lowerface approximately in the plane of the lower face of this member.

In the use of the tool the member 12 is adjusted so that the'distancebetween its lower face and the lower face of the member is desired toremove from the surface of the object to be finished, and the holder 16is adjusted about its pivot so that the cutter may project laterallybeyond the edge 46 of the member 2 a distance equal to the desired widthof the portion of material which is to be removedat each operativemovement of the tool. With the parts adjusted in this manner thatportion of the edge 46 of the member 2 forwardly of the cutter is placedin contact with the edge of the object to be finished, such as a cuttingblock of the type above referred to, and the tool is supported with thelower face of the guide member 12 resting upon the surface tobefinished. The edge 46 of the member 2 thus serves as means forpositioning the tool laterally with reference to the edge of the surfaceto be finished. Forward movement of the tool now causes the cutter toremove from this surface, at one edge, a portion of material of a depthand width previously determined by the above described adjustmentsrespectively of the guide 12 and the holder 16. This provides a narrowfinished surface upon which the lower face of the member 2 rests on asucceeding similar movement of the tool, while the guide 12 again restsupon the unfinished portion. The surface material is thus removed insuccessive increments, as the tool advances laterally over as desired bythe previously described adjustment of the holder 16, while the depth ofcut is regulated by adjustment of the member 12. The holder ispreferably pivoted upon its supporting member, as shown, at a pointremote from the projecting edge portion of the cutter, so that lateraladjustment of the cutter may be effected as required without alteringmaterially the angular relation of the cutter to the lateral edge 46.

The elongation of the members 2 and 12 insures that the operativemovement of the tool shall be substantially in a straight line. In orderto keep the tool to a true plane of operation with reference to itslateral advance, the cutter is preferably so ground and the holder soarranged that the cutting edge 24 may incline slightly downward towardthe point formed by the junction of the edges 22 and 24, and the bladeis adj usted lengthwise of the holder so that this point may projectslightly below the plane of the lower surface of the member 2. This hasthe effect of insuring that the blade shall remove at each operationmaterial of a depth fully equal to the distance between the lower facesof the members 2 and 12 and keeps these members in full contactrespectively with the finished and the unfinished portions of thesurface.

The block 86, as shown clearly in Figs. 5 and 6, is so shaped as to fitthe cutter blade accurately and maintain the same angular relation tothe blade whatever its longitudinal position may be with respect to theblade. Upon the end of the block adjacent to the cutting edges of theblade, moreover, are formed edges or faces 48 and 50 which are parallelrespectively to the cutting edges 22 and 24 when the blade is correctlyground. The block 36 thus serves conveniently as a gage which may beused in the grinding of the cutter to indicate the correct angularrelation of the cutting edges to the length of the blade. The block 36has also another function, which is clearly apparent by reference toFigs. 5 and 6. It will be understood that since either side portion ofthe blade is inclined comparatively little to the direction of movementof the tool, it is necessary that the blade be ground on a rather longbevel at the cutting edges if the tool is to do its work effectively. Itis also important, for the sake of the strength of the blade, that thebevel should not be longer than necessary. The block 36 therefore isshaped so as to indicate the proper degree of the bevel of the cuttingedges as well as the angular relation of the edges to the direction ofthe length of the blade. To this end the block is formed with sideportions 52 that overlap and fit upon the lateral edges of the blade andare formed each with an inclined edge or face 5 1 that is parallel tothe beveled face 56 of the blade when the latter is properly ground andtherefore serves to indicate the proper degree of bevel of the blade.The overlapping portions 52 assist likewise in preventing lateraldisplacement of the block with respect to the blade and in keeping thetwo in fixed angular relation to each other.

It will be understood that when the blade is detached for grinding theblock 36 also is detached so that it may be applied to the blade toindicate the proper angle for the cutting edges and the proper degree ofbevel. For the former purpose the block is applied to the blade with itsedges 48 and 50 directly adjacent to the edges 22 and 24, and forindicating the bevel the block is moved along the blade until, if thegrinding is done properly, the edges or faces 54: lie substantially inthe respective planes of the bevel.

Although the above description has reference to the specific details ofconstruction of the preferred embodiment of the invention illustrated inthe drawings, it will be understood that variations from these precisedetails are comprehended within the spirit and scope of the claims.

Having described the invention, what I claim as new and desire to secureby Letters Patent of the United States is the following:

1. A resurfacing tool having, in combination, guiding means forpositioning the tool laterally with reference to the edge of the surfaceto be finished, and a cutter suitably projected to operate upon saidsurface, said cutter having provision for lateral adjustment withreference to said guiding means to vary the lateral range of operationthereof without varying the depth of the cut.

2. A resurfacing tool having, in combina tion, guiding means forpositioning the tool laterally with reference to the edge of the surfaceto be finished, a cutter arranged with reference to said guiding meansto remove a portion of the material at the edge of said surface on anoperative movement of the tool, and means for varying the relative positions of said cutter and guiding means to vary the width of theportion so removed without varying the depth of the cut.

3. A resurfacing tool having, in combination, guiding means forpositioning the tool laterally with reference to the edge of the surfaceto be finished, said means comprising a member having a lateral edgearranged to contact with the object to be finished at the edge of theunfinished surface, and a cutter projecting laterally beyond the edge ofsaid member so as to remove a portion of the material at the edge ofsaid surface on a forward movement of the tool, said cutter havingprovision for adjustment to vary the eX- tent of its projection beyondsaid lateral edge without varying the extent of downward projection ofthe cutter.

4:. A tool of the class described having, in combination, a cutter,guiding means arranged with reference to the cutter to cause the latterto remove a portion of predetermined depth and width from one edge ofthe surface to be finished on an operative movement of the tool, andmeans for varying the relative positions of said cutter and guidingmeans to cause the cutter to remove from said surface portions ofvarying widths and equal depths.

5. A tool for forming a finished surface upon an object by removingsuccessive increments of material of predetermined lateral extenthaving, in combination, a cutter, means for guiding the tool in itsmovement with reference to both the top and lateral surfaces of theunfinished portion of the object, and means for adjusting the cutterlaterally with reference to said guiding means to vary the lateralextent of the portion removed on an operative movement of the toolwithout varying the depth of the cut.

6. A tool for refinishing a plane surface having, in combination, a bodyportion with a plane face arranged to rest upon the finished portion ofthe surface, a sideportion having a face in a higher plane arranged torest upon the unfinished portion of the sur face, and a cutter having acutting edge projecting laterally beyond the face of said body portionand beneath the face of said side portion and formed to remove thematerial at the edge of the unfinished portion of the surface on aforward movement of the tool, said cutter being adjustable to vary theextent of the projection thereof beyond the side of said body portionwithout altering the extent of its downward projection.

7. A tool of the class described comprising, in combination, a bodymember having a'lateral edge for positioning the tool with reference tothe edge of the surface to be finished, a cutter carried by said memberand suitably projected beyond said lateral edge to remove a portion ofmaterial of predetermined width from the edge of said surface on anoperative movement of the tool, and a holder mounted on said member andarranged to support said cutter, said holder having provision forswinging movement upon said member so as tovary the extent of saidlateral projection of the cutter.

8. A tool of the class described comprising, in combination, a bodymember having a lateral edge for positioning the tool with reference tothe edge of the surface to be finished. a cutter carried by said memberand arranged with its cutting edge projecting beyond the lateral edge ofsaid member, and a holder for the cutter pivotally mounted upon saidmember at a point remote from said edge portion of the cutter so as topera lateral edge for positioning the tool with reference to the edge ofthe surface to be finished, a cutter carried by said member and arrangedwith one end thereof projecting beyond said lateral edge, a holder forthe cutter pivotally mounted upon said member, and means arranged tooperate upon said holder from opposite sides'to swing said holder ineither direction about its axis and thereby'vary the extent of saidprojection of the cutter.

10. In a plane of the class described,the combination with the planestock of a cutter mounted on the stock and comprising a blade beveled atone end to form a cutting edge, and means for securing said blade inposition on the stock at an angle to the direction of movement of theplane including a member shaped to engage the blade in fixed angularrelation thereto, said member having means for indicating the properdegree of bevel at the cutting edge of the blade, whereby said membermay be used as a gage when the blade is ground.

11. combination with the plane stock, of a cutter mounted on the stockand comprising a blade one of the faces of which is beveled at one endto, form a cutting edge, and means for securing the blade in operativeposition on the stock at an angle to the direction of movement of theplane comprising a member shaped to engage the opposite face of theblade and maintain a'fixed angular relation to the length of the bladewithout preventing relative longitudinal movement of said member andblade, said member having means for indicating the proper degree ofbevel at the cutting edge of the blade.

12. In a plane of the class described, the combination with the planestock, of a cutter mounted on the stock and comprisinga blade beveled atone end to form a cutting edge, and means for securing the blade inoperative position on the stock at an angle to the direction of movementof the plane comprising a member shaped to engage the blade in fixedangular relation thereto and having a portion formed to project over thelateral edge of the blade, said projecting portion being shaped topresent an edge substantially parallel to the plane of the bevel at thecutting edge of the blade, whereby said member may be used as a gage toindicate the blade is ground.

13. In a plane of the class described, the combination with the planestock, of a cutter mounted on the stock and comprising In a plane of theclass described, the

proper degree of bevel when the a blade having its side portionsarranged to form an angle with each other and its outer faces beveled atone end to form cutting edges, and means for securing the blade inoperative position on the stock at an angle to the direction of movementof the plane comprising a member shaped to rest within the angle of saidblade in fixed angular relation thereto and having side portions formedto overlap the lateral edges of said blade, said overlapping portionsbeing shaped to present faces substantially parallel respectively to theplanes of the bevel at said cutting edges, whereby said member may beused as a gage to indicate the proper degree of bevel when the blade isground.

l l. In a plane of the class described, the combination with the planestock, of a cutter mounted on the stock and comprising a blade havingcutting edges arranged at an angle to each other, and means for securingthe blade in operative position on the stock at an angle to thedirection of movement of the plane comprising a bearing block shaped toengage the blade in fixed angular relation thereto and constituting aportion of a clamping device for securing the blade in position, saidblock being shaped at one end to present edges substantially parallelrespectively to the cutting edges of the blade, whereby the block may beused as a gage to indicate the correct angular relation of said cuttingedges to the length of the blade when the blade is ground.

15. In aplane of the class described, the combination with the planestock, of a cutter mounted on the stock and comprising a blade havingits side portions arranged to form an angle with each other and havingcutting edges at one end of said blade, and means for securing the bladein operative position on the stock at an angle to the direction ofmovement of the plane comprising a member shaped to rest within theangle of said blade in fixed angular relation thereto, said member beingshaped at one end to present edges substantially parallel respectivelyto the cutting edges of the blade, whereby the block may be used as agage to indicate the correct angular relation Copies of this patent maybe obtained for of said cutting edges to the length of the blade.

16. In a plane of the class described, the combination with the planestock, of a cutter mounted on the stock and comprising a blade havingits side portions arranged to form an angle with each other and itsouter faces beveled at one end to form cutting edges, and means forsecuring the blade in operative position on the stock at an angle to thedirection of movement of the plane comprising a member shaped to restwithin the angle of said blade in fixed angular relation thereto, saidmember having means for indicating the proper degree of bevel at thecutting edges of the blade and being shaped also to present edgessubstantially parallel respectively to the cutting edges of the blade soas to indicate the correct angular relation of said cutting edges to thelength of the blade.

17 A plane comprising, in combination, a plane stock having a lateralguiding edge, a cutter carried by the stock and arranged with itscutting edge projecting beyond said lateral edge of the stock, and aholder for the cutter adjustable with reference to the stock to causethe cutter to be projected different distances laterally beyond theguiding edge of the stock.

18. A plane comprising, in combination, a plane stock having a lateralguiding edge and a lower face arranged to rest upon the finished portionof the material, a cutter carried by the stock and arranged with itscutting edge projecting beyond said lateral edge of the stock, and aholder for the cutter adjustable with reference to the stock in a planesubstantially parallel to the lower face of the stock to cause thecutter to be projected different distances laterally beyond the guidingedge of the stock.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN H. RICHARDSON.

Witnesses:

HOWARD Q. WINsLoW, VVILLIAM B. KING.

five cents each, by addressing the Commissioner of Patents Washington,D. O.

